Drain tube for embalmers



Feb-8,1944. J, L, cc 2,341,388

DRAIN TUBE FOR EMBALMERS Filed Dec. 2, 1942 Patented Feb. 8, 1944 UNITED STATES PATENT OFFICE 2,341,388 DRAIN TUBE FOR EMBALMERS John L. Rocca, Brooklyn, N.-Y. Application December 2, 1942, Serial No. 467,575

7 Claims.

This invention relates to new and useful improvements in a drain tube for embalmers.

More specifically, the invention proposes the construction of a drain tube for embalmers characterized by a tube having a conveying screw slidably extended from one end thereof in a manner to be drawn into the tube permitting the end of the tube to be inserted into a vein with the screw retracted so as to prevent it from puncturing the vein.

Another object of the invention proposes to provide the devic with a novel means for driving the conveying screw with the drive means being so arranged that when it is driving the screw it will tend to maintain it in a position extended from the end of the tube.

Still further it is proposed to provide a novel spring operated motor for driving the conveying screw in a manner to convey fiuids through the tube and discharge them from a side outlet formed on the tube.

Still another object proposes the construction of a modification of this invention wherein a turbine utilizing air pressure is provided for driving the conveying screw.

A further object of th invention proposes the provision of a fluid container for use in conjunction with the air driven modification of this invention.

It is a further object of this invention to construct a drain tube for embalmers which is simple and durable and which may be manufactured and sold at a reasonable cost.

For further comprehension of the invention, and of the objects and advantages thereof, reference will be had to the following description and accompanying drawing, and to the appended claims in which the various novel features of the invention are more particularly set forth.

In the accompanyingdrawing forming a material part of this disclosure:

Fig. 1 is a perspective view of an embalmers i drain tube constructed in accordance with this invention.

Fig. 2 is an enlarged longitudinal sectional view taken on the line 2--2 of Fig. 1.

Fig. 3 is a vertical sectional View taken on the line 3-3 of Fig. 2.

Fig. 4 is a vertical sectional view taken on the line 4-4 of Fig. 3.

Fig. 5 is a side elevational view of an embalmers drain tube constructed in accordance with a modification of this invention and having a portion thereof broken away to reveal interior construction.

Fig. 6 is a side elevational view of a fluid container for use by embalmers.

The drain tube for embalmers, according to this invention, includes a tube I0 having one end open and its other end closed by means of a cap ll. Between its ends and at one side the tube I0 is formed with a discharge spout A rotative and slightly slidable shaft [3 is disposed in the rear end of the tube ill and has its end projected through an opening formed in the cap II. The free end of the shaft [3 is formed with a bead M which is adapted to strike the cap II and limit inward movement of the shaft l3. The bead M in turn continues into a knob l5 which is adapted to be gripped for manually pulling the shaft [3 slightly outwards for a purpose which will be hereinafter. described.

A conveying screw I6 is disposed in the front end of the tube It and is connected with the front end of the shaft l3. When the bead I4 engages the cap II the front end of the screw l6 projects slightly from the front end of the tube as shown in Figs. 1 and 2. However, when the shaft I3 is moved rearwards relative to the tube It) the projected and of the screw IE will be retracted permitting the free end of the tube to be inserted into a vein without the end of the screw l6 puncturing the vein.

The shaft l3 between the cap II and the discharge spout I2 is formed with a reduced section formed with worm threads 11. On either side of the reduced section the shaft 13 is formed with a groove in which a washer I8 is mounted. These washers l8 are designed to engage the inside face of the tube l0 and seal the space in the tube l0 formed by the reduced section of the shaft l3.

A worm pinion I8 is rotatively mounted in the tube In and meshes with the threads I! formed on the shaft I3. The worm pinion I8 is fixed on a shaft H] which is rotatively extended across the tube 0 at right angles to the shaft l3.

Mean is provided for driving the shaft [9 to in turn drive the pinion I 8 and the shaft l3 and the screw conveyor [6 for lifting fluids through the tube It and discharge them from the spout l2. This means is characterized by a hollow container 20 mounted on the side of the tube l0 and into which the free end of the shaft i9 extends. Within the container 20 the free end of the shaft I9 rotatively extends into an opening 2| formed in a stud shaft 22 which is rotatively supported on the opposite wall of the hollow container 29. The free end of the stud shaft 22 is formed with a squared portion 23 adapted to be engaged by a turning tool for turning the stud shaft 22.

A brake drum 24 is fixedly mounted upon an intermediate portion of the shaft I9 adjacent the free end of the stud shaft 22. A spring pressed pawl 25 is mounted on one side of the brake drum 24 and is adapted to mesh with a complementary ratchet wheel 26 formed. on the adjacent end of the stud shaft 22. A helical spring 21 has one end attached to the stud shaft 22 and its other end attached to the peripheral wall of the hollow container 29. The pawl 25 and ratchet 26 are arranged to permit the stud shaft 22 to be turned in one direction independently of the shaft I9 for winding the spring. However, when the spring 21 unwinds the pawl 25 and ratchet 26 lock the shafts I9 and 22 together causing the shaft I9 to be rotated to rotate the conveyor screw I6.

A brake means is engaged withthe brake drum 2d for holding the shaft I9 against being rotated under the power of the spring 21 except at such times as when the brake means is released. The brake means is characterized by abrake shoe 29 which engages one side of the drum 24. This shoe 29 is mounted upon the bottom end of a rod 29 which slidably engages a bracket 32 mounted upon one wall of the hollow container 2i}. An expansion spring M is coaxially mounted upon the rod 29 and operated between the adjacent faces of the shoe 28 and the bracket 32 to constantly urge the brake shoe 28 into contact with the periphery of the brake drum 24 and hold theshaft l9 against rotating.

A lever 32'is pivotally supported intermediate of its ends upon a support 33 mounted within the container 20. One end of the lever 32 is connected by. means of a slot and pin 34' with an intermediate portion of the brake shoe 28'. The otherend. of the lever 32 is connected by means of a slot and pin 35 with a button 35 which is depressibly extended through a wall of the containerZI).

The operation of this formof the invention is as follows:

When an embalmer wishes to use the drain tube he first winds the spring. 21 by gripping. the square end portion 23 of the stud shaft 22 with a turning tool and turns the stud shaft 22 to wind: the spring 2 The pawl 25 will merely idle over the ratchets 26 and the shaft I9 will be held against rotating, during the winding operation, by the brake mechanism. After the spring. 21 is wound the projected end. of the conveyor screw I6 is' retracted by pulling upon the knob I and the free end of the tube Ill is inserted into the vein. The knob I5 is then released and the button 36 is pressed, inwards lifting the brake shoe 28 out. of engagement with. the brake drum 24 againstthe. holding action of the spring 34. This will free the-shaft 1-9 to be rotated by the stored energy of the. spring 21 and rotate the worm pinion I'il. in the direction of the arrow A. The rotation willfirst urgethe shaft I 3 and conveyor I6 into a. position in which the bead I4 will strike thecap H and extend the conveyor I6 fromthe end of the. tube- It The conveyor I6 will then be rotated to move liquid through the tube "land discharge it through the discharge spout I2. To stop the conveyor I6 it is merely necessary to release the button 36 permitting the spring H to re-engage the brake shoe 28 with the brake drum 24 and hold the shaft I9 from rotating.

In Fig. 5 a modification of the invention is shown in which the shaft I9 extends into a hollow container 28. A rotor 40 is mounted on the shaft I9 within the container 20. One side of the container is formed with an air inlet tube 4| controlled by a valve 42. This tube AI is adapted to be connected with a device for supplying air under pressure to strike the rotor 40 and drive the shaft I9 to in turn drive the conveyor I6 by air pressure.

The opposite side of the container 20' is formed with a discharge tube 43 controlled by a valve 44 for permitting the air to escape from the container 20' after having acted upon the rotor 40.

In other respects this form of the invention is similar to the previous form and like reference numerals identify like parts in each of the several views.

In Fig. 6 a fluidcontainer 591s illustrated for use in connection with the latter form of the in vention. The container is characterized by a glass bottle 5| having its neck opening closed by means of a cork 52. The cork 52 has a rubher bottom portion 53 engaging the neck opening and a metal top portion 54. An air inlet tube 55 is extended through the cork 52- for supplying air under pressure to the inside of the bottle 5|. A fluid discharge tube 56- is also extended through the cork. This tube 55 has its bottom end in close proximity to the bottom of the bottle 5! and is provided with a valve 51. When the valve 51 is open the air under pressure which enters the bottle 5i will force the liquid contained within the bottle out of the bottle through the tube 56. The cork also has an air discharge tube 58 extended through it and provided with a valve which may be opened permitting. the air which gathersin the top portion of the bottle 5| above Eh}: liquid to pass out of the bottle throughthis The feature of this fluid container 50 resides in the fact that the cork 52 is fixedly maintained in position within the neck opening, preventing pressures within the bottle from blowing. the cork out of the neck opening. A metal band 69 has one edge portion engaging the top face of the cork 52. and its other edge portion bent'to engage beneath a bead: 6| formedupon the top edge of the neckof' the bottle 51. band 52' is formed of flexible stock and. is adapted to be removed freeing thev cork 52 to be removed so thatthe supply of fluid within the container may be replenished.

While I' have illustrated: and described the preferred embodiments of my invention. itis to be understood that I do not limit myself to the precise construction herein disclosed and the right is reserved to all changes and modifications coming within the scope of the: invention as d'efined in the appended claims.

Having thus described my invention; what I claim as new; and desireto secure by' United States Letters Patent is:

l. A drain tube for embalmers, comprising a tube, a rotative and slightlyslidable shaft in: the rear end of said tube, a conveying screw mounted in the front end of said tube and connected with said shaft, said shaft having'a reduced' sec tion formed with worm threads, a worm pinion rotatively mounted in said tube'and meshing with said threads, means for driving said worm pinion, and a knob on the outer endof said shaft by The metal which it may be moved rearwards for retracting the front end of said conveying screw.

2. A drain tube for embalmers, comprising a tube, a rotative and slightly slidabie shaft in the rear end of said tube, a conveying screw mounted in the front end of said tube and connected with said shaft, said shaft having a reduced section formed with worm threads, a worm pinion rotatively mounted in said tube and meshing with said threads, means for driving said worm pinion, and a knob on the outer end of said shaft by which it may be moved rearwards for retracting the front end of said conveying screw, said tube having one end closed by means of a cap formed with an opening through which the extended end of said shaft extends.

3. A drain tube for embalmers, comprising a tube, a rotative and slightly slidable shaft in the rear end of said tube, a conveying screw mounted in the front end of said tube and connected with said shaft, said shaft having a reduced section formed with worm threads, a worm pinion rotatively mounted in said tube and meshing with said threads, means for driving said worm pinion,

and a knob on the outer end of said shaft by which it may be moved rearwards for retracting the front end of said conveying screw, said tube having one end closed by means of a cap formed with an opening through which the extended end of said shaft extends, and a bead formed on said shaft and engageable against said cap for limiting the extended position of said conveyor.

4. A drain tube for embalmers, comprising a tube, a rotative and slightly slidable shaft in the rear end of said tube, a conveying screw mounted in the front end of said tube and connected with said shaft, said shaft having a reduced section formed with worm threads, a worm pinion rotatively mounted in said tube and meshing with said threads, means for driving said worm pinion,

and a knob on the outer end of said shaft by which it may be moved rearwards for retracting the front end of said conveying screw, said means comprising a spring controlled motor,

5. A drain tube for embalmers, comprising a tube, a rotative and slightly slidable shaft in the rear end of said tube, a conveying screw mounted in the front end of said tube and connected with said shaft, said shaft having a reduced section formed with worm threads, a worm pinion rotatively mounted'in said tube and meshing with said threads, means for driving said worm pinion, and a knob on the outer end of said shaft by which it may be moved rearwards for retracting the front end of said conveying screw, said means comprising a spring controlled motor, and a man ually controllable brake mechanism for holding said motor from turning said pinion except when said brake mechanism is released.

6. A drain tube for embalmers, comprising a tube, a rotative and slightly slidable shaft in the rear end of said tube, a conveying screw mounted in the front end of said tube and connected with said shaft, said shaft having a reduced section formed with worm threads, a worm pinion rotatively mounted in said tube and meshing with said. threads, means for driving said worm pinion,

and a knob on the outer end of said shaft by which it may be moved rearwards for retracting the front end of said conveying screw, said means comprising a rotor connected with said pinion and adapted to be driven by compressed air.

'7. A drain tube for embalmers, comprising a tube, a rotative and slightly slidable shaft in the rear end of said tube, a conveying screw mounted in the front end of said tube and connected with said shaft, said shaft having a reduced section formed with worm threads, a worm pinion rotatively mounted in said tube and meshing with said threads, means for driving said worm pinion, and a knob on the outer end of said shaft by which it may be moved rearwards for retracting the front end of said conveying screw, said means being designed to rotate said pinion to rotate said shaft and urge said shaft into a position in which the free end of said conveyor will be extended from the open end of said tube.

JOHN L. ROCCA. 

